665224608435 has 16 divisors (see below), whose sum is σ = 1064512751616. Its totient is φ = 354735331808.

The previous prime is 665224608413. The next prime is 665224608527. The reversal of 665224608435 is 534806422566.

It is a cyclic number.

It is not a de Polignac number, because 665224608435 - 2¹⁸ = 665224346291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3087699 + ... + 3296108.

It is an arithmetic number, because the mean of its divisors is an integer number (66532046976).

Almost surely, 2^665224608435 is an apocalyptic number.

665224608435 is a deficient number, since it is larger than the sum of its proper divisors (399288143181).

665224608435 is a wasteful number, since it uses less digits than its factorization.

665224608435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390762.

The product of its (nonzero) digits is 8294400, while the sum is 51.

The spelling of 665224608435 in words is "six hundred sixty-five billion, two hundred twenty-four million, six hundred eight thousand, four hundred thirty-five".